Nosebleeds in children are relatively common in life and may be caused by dry weather, malnutrition, external irritation, disease and many other reasons, which are mostly harmless and can be stopped by themselves. If the nosebleed is caused by disease, parents need to pay attention to the following common diseases: 1, nasal foreign body: children may mistakenly put foreign objects into the nasal cavity when playing, which will stimulate the nasal mucosa and lead to bleeding, and should go to the hospital as soon as possible to remove the foreign body; 2, rhinitis: is caused by viral or bacterial infection, allergen stimulation and other causes, causing inflammation of the nasal mucosa or submucosa tissue, nasal congestion , rhinitis, rhinorrhea and other symptoms. Anti-infection treatment is recommended, and anti-infective drugs can be taken under the guidance of a doctor to control inflammation and relieve symptoms; 3, hemophilia: a group of hereditary bleeding disorders with severe coagulation dysfunction, the lack of coagulation factors in the patient’s body, prone to nosebleeds, it is recommended that timely hospital visits for professional treatment; 4, anemia: for example, autoimmune hemolytic anemia, aplastic anemia All of them will have nosebleeds; especially aplastic anemia, it is common to have nosebleeds, gum bleeding, fundus bleeding and other symptoms, while autoimmune hemolytic anemia is common to have sudden nosebleeds; 5, hepatitis: it is due to various factors such as viruses, bacteria, chemical toxins, drugs and other stimuli, resulting in the destruction of liver cells, abnormal liver function, impaired synthesis of coagulation factors, and then weakness, fatigue, nosebleeds and other symptoms. fatigue, nosebleeds and other symptoms.